Resistors:

Capacitors:

The values of the resistors are indicated by colored stripes. Resistors can be inserted in either direction. The leads (wires) need to bebent very close to the body of the resistor. Hold the resistor body and press down on each lead right at the body to make a U shape.

The black and gray 33The little blue 1 μF ceramic capacitor (#10) can be inserted in either direction. μF electrolytic capacitor (#11) ispolarized, so the direction that it is inserted into the board is important. The negative lead on the capacitor is shorter and is marked with a graystripe on its body. The positive hole on the board is marked with a plus sign.

Make sure that the flat side of the transistor (#12) lines up with the flat side of the outline on the board. The transistor and the photo-detector are similar, however, the transistor is bigger and has one totally flat side, whereas the photo-detector has a little round bulge on one side.

The LEDs are polarized, so the direction that they are inserted into the board is important. The negative lead on the LEDs is the shorter one,and it goes in the hole indicated by the flat side of the outline and by the square pad.

The infrared LED (#20) is inserted into the bottom of the board, and soldered on top. It should not be soldered flat against the board.Leave it sticking down about 1/4 inch below the board. After it is soldered, bend it up so that it points out to the right side of the board.

The photo-detector (#21) is inserted into the bottom of the board, and soldered on top. It will not sit flush against the board.When it is fully inserted into the board, it will hang down a little bit. Make sure that the little bulge points out to the left side of the board.

Should be inserted into the sockets after the rest of the board is assembled. The chip leads come from the factory splayed out a bit, so youmay need to bend them inward a little to insert them. Gently press the leads against a flat surface to bend all the leads each side at the same time.Note the direction of the chips before inserting them. The notch or dot on the chip goes to the left.

This gets inserted from the bottom of the board and soldered on the top. It covers the bottom of some of the other components, somake sure that everything is working before soldering it in place. You can put a battery in the holder and insert the leads into the holes on the boardto test that the device is working before you solder the battery holder leads. Screw the battery holder to the board after it is soldered.

Transistor:

LEDs:

IR LED:

Photo-detector:

Chips:

Battery Holder:

Instructions:

The parts are listed above in the recommended assemblyorder, but experienced electronic kit builders should feel freeto deviate from that order. The printed circuit board has anoutline for each part, but not every outline is labeled. F

, please refer to the photograph of the finished kitto the right. If this is the first electronic kit you haveassembled, please read the soldering tutorial first. Beloware some notes to help with assembly.

orclarification

Email questions or comments to info@delptronics.com

Bender Sequencer Assembly InstructionsDELPTRONICS

Parts List:

1 Printed Circuit Board2 6 Pin Chip Socket3 16 Pin Chip Sockets (4)4 2205 1K6 10K7 1M8 2M29 4M710 1

Ω

μF Ceramic Capacitor11 33 μF Electrolytic Capacitor12 2N2222 Transistor

17 500K Potentiometers (10)18 Red LED19 Green LEDs (8)20 Infrared LED (clear/pink)21 Photo-detector

23 LTV846 Optocoupler Chips (2)

26 9V Battery Holder27 Plastic Stand-offs (2)28 Self Tapping Screws (4)

Resistors (5)Resistor

Resistors (2)Resistor

ResistorResistor

red black black brown

black brown brown

black brown

black black yellow brown

black yellow brown

black yellow brown

ΩΩ

ΩΩΩ

13 DP3T Power Switch14 DP4T Divider Switch15 SP4T Steps Switch16 Screw Terminals

Ω

22 4N37 Optocoupler Chip

24 CD4022 Counter Chip25 CD4536 Timer Chip

brown black

brown black red

brown

red red

yellow violet

red 1919

27/28 27/28

28

1919

1919

19

20

19

21

28

2/22

3/23

3/23

3/24

3/25

17

17

17

17

17

14 15

13

17

17

17

12

11 95 108 6 64 7

16

18

4 4 4 4

17 17

26

Connections

A) Trigger Terminals -

B) Resistor Terminals -

Notes -

These two screw terminals connect the trigger output to the bentdevice. Insert wires into the terminals and tighten the screws. Then connect the wires tothe bent device. The trigger can be used just as you would use a switch. Each step ofthe sequence, the trigger switch goes on, then off. The trigger output can be used inmany ways. For instance the trigger could be connected across a button of the bentdevice to simulate pressing the button, or it could interrupt the speaker in devices with noswitch, or it could be used to connect two glitch points, or it could be used in series with aresistor to produce a vibrato or tremolo effect. The trigger can be used alone, inconjunction with the resistor output, or not at all.

These three screw terminals connect the variable resistor outputto the bent device. Insert wires into the terminals and tighten the screws. Then connectthe wires to the bent device. The three terminals correspond to the terminals on apotentiometer, that is, the center terminal is the wiper, and the left and right terminals arethe left and right of the potentiometer. The resistor output is used anywhere you woulduse a resistor or potentiometer. Each step of the sequence, the associated steppotentiometer is connected to the resistor terminals. The resistor output is typicallyused to control the pitch of a bent device. The resistor output can be used alone, inconjunction with the trigger, or not at all if you want only the trigger function.

The terminals are optoisolated. An optoisolator is a device that contains an LEDand a light-activated transistor embedded inside it. The sequencer turns on the LED,which activates the transistor. This has the effect of electrically isolating the sequencerfrom the bent device. The benefit of optoisolation is that the bent device can run at adifferent voltage than the sequencer without harming either device. The outputtransistor can be affected by the polarity of the bent device, so if you are not getting theeffect you expect, then reverse the terminal wires. Because the terminals are passingthrough a phototransistor, they are polarized, so if it is not working or is not giving therange or volume expected, you should reverse the wires. Keep in mind that thesequencer is designed to control low voltage devices (25 volts or less). So take care,and never use it on a mains powered device.

Bender SequencerMickeyDelp.Com

FOLLOWLEAD

POWER DURATION FREQUENCY DIV STEPS

E E

E E

E E

E E

D D

D D

D D

D D

A

C

B

F G H I J

Controls

C) Trigger Indicator LED -

D) Step Indicator LEDs -

E) Step Potentiometers -

The trigger indicator LED blinks once for each beat. When it is on, it indicates that the trigger output is on.

One step indicator LED will be lit at a time, indicating the current step.

These are the knobs that control the resistor output of each step (typically the pitch).

IR Sync below.

IR Sync.

IR Sync is used to wirelessly connect multiple devices so that they run in synchronization at the same frequency. The devices can beBender Squencers, or any of the cool devices made by EricArcher.net (who invented the IR Sync method). The devices are set side-by-side. Each device’s infrared LED points to the next device’s infrared detector. The first device on the left is set to lead and all thedevices to its right are set to follow. The lead device controls the frequency. On every beat, the leader pulses its infrared LED. Eachdevice down the line detects the infrared signal, acts on it, and pulses its own infrared LED to signal the next device down the line.

This is where the Bender Sequencer’s frequency divider comes in. Two or more sequencers can be synchronized, but each one canbe playing different note lengths. For instance, one sequencer can be playing 16th notes and another playing eighth notes. So thesecond sequencer will advance one step for every two steps of the first one. Each device pulses its infrared LED on every 16th note,regardless of its frequency divider setting.

F) Power Switch -

G) Duration -

H) Frequency -

I) Frequency Divider Switch -

J) Steps Switch -

This is a three-position slide switch that turns the sequencer off, or sets lead or follow mode. See

The duration potentiometer controls the amount of time that the trigger output is on during each step. When thefrequency divider switch is set to 1, the duration is fixed at 50% of the step time.

The frequency potentiometer controls the speed of the steps. Frequency is the same as tempo or beats per minute.

The frequency divider is a four-position switch that divides the frequency by 1, 2, 4 or 8. If you thinkof one beat as a 16th note, then the frequency divider settings change the notes to eighth, quarter or half notes, respectively. It isparticularly useful when multiple devices are connected with

This four-position switch sets the number of steps in the sequence. The options are 2, 3, 4 or 8 steps.

IR Sync - Infrared Synchronization

Email questions or comments to info@delptronics.com

Usage InstructionsDELPTRONICS Bender Sequencer